Báo cáo toán học: "Directed animals and gas models revisited" pot

Báo cáo toán học: "Directed animals and gas models revisited" pot

Báo cáo toán học: "Directed animals and gas models revisited" pot

... sites c-colored, and the points of S \S • must be c-colored.  the electronic journal of combinatorics 14 (2007), #R71 29 Directed animals and gas models revisited Yvan Le Borgne and Jean-Fran¸cois ... enumeration of directed animals using gas models. We show that there exists a natural construction of random directed animals on any directed graph together with a particles...

Ngày tải lên: 07/08/2014, 15:23

36 262 0
Báo cáo toán học: " Monomial nonnegativity and the Bruhat orde" pot

Báo cáo toán học: " Monomial nonnegativity and the Bruhat orde" pot

... (1982) pp. 104–126. [19] B. Rhoades and M. Skandera. Kazhdan-Lusztig immanants and products of matrix minors (2005). In progress. [20] B. Rhoades and M. Skandera. Temperley-Lieb immanants. Ann. ... K. Li, and Y. Poon. Eigenvalues, singular values, and Littlewood-Richardson coefficients. Amer. J. Math., 127, 1 (2005) pp. 101–127. [9] S. Fomin and A. Zelevinsky. Total positivity: Test...

Ngày tải lên: 07/08/2014, 08:22

5 174 0
Báo cáo toán học: "Random Orders and Gambler’s Ruin" potx

Báo cáo toán học: "Random Orders and Gambler’s Ruin" potx

... Introduction Droste and Kuske [4] have studied several random processes for producing a linear ordering ≺ on the set N of positive integers. In contrast to random graphs [2] and similar structures, random ... in the random process and when we begin the random process with a specified ordering of a finite initial segment of the natural numbers. Our proofs use a connection between the conje...

Ngày tải lên: 07/08/2014, 08:22

27 322 0
Báo cáo toán học: "The diameter and Laplacian eigenvalues of directed graphs" pps

Báo cáo toán học: "The diameter and Laplacian eigenvalues of directed graphs" pps

... part by NSF Grants DMS 0100472 and ITR 0205061. References [1] F. Chung, Diameters and eigenvalues, J. of Amer. Math. Soc. 2 (1989), 187-196. [2] F. Chung, V. Faber and T. A. Manteuffel, An upper ... b x =  φ(x)P (x, y)  and (2) (i.e.,  x φ(x)P (x, y)= φ(y)). The next equality is easily verified noting that |a + b| 2 + |a − b| 2 = |a| 2 + |b| 2 and then using (2) and (1) (i.e., ...

Ngày tải lên: 07/08/2014, 13:21

6 226 0
Báo cáo toán học: " The structural and optical properties of GaSb/InGaAs type- quantum dots grown on InP (100) substrate" ppt

Báo cáo toán học: " The structural and optical properties of GaSb/InGaAs type- quantum dots grown on InP (100) substrate" ppt

... and STEM images of GaSb/In 0.53 Ga 0.47 As QDs and histogram of the height of GaSb/In 0.53 Ga 0.47 As QDs. (a) The AFM image of GaSb/In 0.53 Ga 0.47 As QDs, (b) histogram of the height of GaSb/In 0.53 Ga 0.47 As ... conduction band to the GaSb hole level (type-II) and the GaSb QDs direct interband transition (type-I) respectively, as shown in Figure 4a. To explain the PL mechanism...

Ngày tải lên: 20/06/2014, 20:20

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Báo cáo toán học: " Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles" docx

Báo cáo toán học: " Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles" docx

... concentrations become light yellow, and the color becomes deeper and deeper with increasing Mn. The phase purity and crystal structure of the pristine ZnO and Mn-doped ZnO for various doping ... in the absorption band edge with increasing dopant concentration, and corresponding photoluminescence spectra show that Mn doping suppresses both near-band edge UV emission and defect-...

Ngày tải lên: 20/06/2014, 20:20

20 402 0
Báo cáo toán học: " Weak compactness and the Eisenfeld-Lakshmikantham measure of nonconvexity" potx

Báo cáo toán học: " Weak compactness and the Eisenfeld-Lakshmikantham measure of nonconvexity" potx

... noncon- vexity in X and {Y n } ∞ n=1 is the decreasing sequence of nonempty, closed, and bounded subsets of X defined by Y 1 = f(Y ), Y n+1 = f(Y n ) (n ∈ N). Proposition 3.2. Let Y be a nonempty and weakly ... point theorems for con- densing and nonexpansive maps will be proved. 3.1. Condensing maps. Definition 3.3. Let Y be a nonempty and bounded subset of a Banach space X, and le...

Ngày tải lên: 20/06/2014, 20:20

15 346 0
Báo cáo toán học: " Combined perception and control for timing in robotic music performances" ppt

Báo cáo toán học: " Combined perception and control for timing in robotic music performances" ppt

... able to adapt and synchro- nize well with the tempo, dynamics and rhythmic feel of the performer and this needs to be achieved within hard real-time constraints. Unlike repetitive and dull tasks, ... conga player, and a central computer as shown in Figure 14. The central computer listens to the polyphonic music played by all parties and jointly infers the tempo, and bar position...

Ngày tải lên: 20/06/2014, 20:20

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Báo cáo toán học: "Heterologous expression and optimization using experimental designs allowed highly efficient production of the PHY US417 phytase in Bacillus subtilis 168" ppt

Báo cáo toán học: "Heterologous expression and optimization using experimental designs allowed highly efficient production of the PHY US417 phytase in Bacillus subtilis 168" ppt

... production by respectively A. niger CFR335 (Gunashree and Venkateswaran 2008), A. niger NCIM 563 (Soni and Khire 2007) and P. anomala (Kaur and Satyanarayana 2005). In addition to the illustration ... at 65 °C (instead of 55 °C) and recovered about 90 and 55% of its activity (77 and 0% for the native enzyme) after heating for 10 min at 75 °C in the presence and absence of...

Ngày tải lên: 20/06/2014, 20:20

34 437 0
Báo cáo toán học: "Chemical composition and antibacterial activity of the essential oils from Launaea resedifolia L." docx

Báo cáo toán học: "Chemical composition and antibacterial activity of the essential oils from Launaea resedifolia L." docx

... archetype prescriptions to fight infections is an absolute necessity and in this regard, plant essential oils may offer a great potential and hope. Several studies have reported the efficacy of antibacterials ... bitter stomachic, skin diseases, and reported to have antitumor, insecticide and cytotoxic activities [3]. The antimicrobial activities of coumarin constituents [4] and...

Ngày tải lên: 20/06/2014, 20:20

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